bpf timers

  1. CVE-2025-21825: Fix canceling running bpf timer on PREEMPT RT kernels

    Title: CVE-2025-21825 — bpf: “Cancel the running bpf_timer through kworker for PREEMPT_RT” (what happened, who’s affected, and what to do) Date: March 6, 2025 (published / CVE assignment) — updated summary for sysadmins (Dec 7, 2025) Summary A kernel-level locking problem involving BPF map...
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    • Forum: Security Alerts